X-Git-Url: https://git.dlugolecki.net.pl/?a=blobdiff_plain;f=src%2Fprocess3.c;h=1357c91b5ab5bedd439948ac3a8c9780abe128e6;hb=2a3a69b2ecc61d45586cb8f15435255d998573ac;hp=28ecce5dcb6b4076c56447d2d9d1f8a3260e0f40;hpb=963f77561737c9098d160a4b1d308c71ab0fdef8;p=wsti_so.git

diff --git a/src/process3.c b/src/process3.c
index 28ecce5..1357c91 100644
--- a/src/process3.c
+++ b/src/process3.c
@@ -35,7 +35,8 @@ key_t shmkey = 18912;
 int shmid;
 
 /**
- * Message shared by processes. Contains array of process IDs
+ * Structure holding array of process IDs.
+ * Message is shared by processes. Contains array of process IDs
  */
 struct message {
 	pid_t pids[3];
@@ -44,11 +45,24 @@ struct message {
 struct message * processes = NULL;
 
 /**
- * Message queue variables
+ * Message Queue variables
+ */
+
+/**
+ * Unique key of message queue.
  */
 key_t qkey = 12356;
+
+/**
+ * Queue descriptor.
+ */
 int qid;
 
+/**
+ * Structure holding queue message data.
+ * Parameter mtype describes process to whom message is sent.
+ * Parameter signo is a signal to raise after getting message.
+ */
 struct queue_message {
 	long mtype;
 	int signo[1];
@@ -86,10 +100,6 @@ void sig_handler(int signo)
 			fprintf(stderr, "[%s] > Notified with value: %s!\n", "process3", strsignal(msg.signo[0]));
 			raise(msg.signo[0]);
 		}
-		else if (msgrcv(qid, &msg, sizeof(int), 3, 0) > 0) {
-			fprintf(stderr, "[%s] > Notified with value: %s!\n", "process3", strsignal(msg.signo[0]));
-			raise(msg.signo[0]);
-		}
 	}
 	else if (signo == SIGTERM) {
 		fprintf(stderr, "[%s] > Signalling other processes..\n", "process3");
@@ -102,7 +112,10 @@ void sig_handler(int signo)
 	}
 	else if (signo == SIGTSTP) {
 		fprintf(stderr, "[%s] > Signalling other processes..\n", "process3");
+		processes->pids[2] = 0;
 		notify_other_processes(signo);
+// 		sleep(1);
+		processes->pids[2] = getpid();
 
 		fprintf(stderr, "[%s] > Closing pipe\n", "process3");
 		close(read_descriptor);
@@ -110,7 +123,10 @@ void sig_handler(int signo)
 	}
 	else if (signo == SIGCONT) {
 		fprintf(stderr, "[%s] > Signalling other processes..\n", "process3");
+		processes->pids[2] = 0;
 		notify_other_processes(signo);
+// 		sleep(1);
+		processes->pids[2] = getpid();
 
 		fprintf(stderr, "[%s] > Opening pipe\n", "process3");
 		read_descriptor = open(read_pipe, O_RDONLY);